80768181 has 16 divisors (see below), whose sum is σ = 116867520. Its totient is φ = 49320960.

The previous prime is 80768167. The next prime is 80768243. The reversal of 80768181 is 18186708.

It is not a de Polignac number, because 80768181 - 2⁷ = 80768053 is a prime.

It is a super-2 number, since 2×80768181² = 13046998124097522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80768101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2796 + ... + 13013.

It is an arithmetic number, because the mean of its divisors is an integer number (7304220).

Almost surely, 2^80768181 is an apocalyptic number.

It is an amenable number.

80768181 is a deficient number, since it is larger than the sum of its proper divisors (36099339).

80768181 is a wasteful number, since it uses less digits than its factorization.

80768181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15956.

The product of its (nonzero) digits is 21504, while the sum is 39.

The square root of 80768181 is about 8987.1119387710. Note that the first 3 decimals coincide. The cubic root of 80768181 is about 432.2617102054.

The spelling of 80768181 in words is "eighty million, seven hundred sixty-eight thousand, one hundred eighty-one".